// components/like/index.js
Component({
    /**
   * 组件的属性列表
   */
    properties: {
        like: {
            type: Boolean
        },
        count: {
            type: Number
        }

    },

    /**
   * 组件的初始数据
   */
    data: {
        yesSrc: 'images/like.png',
        noSrc: 'images/like@dis.png'
    },

    /**
   * 组件的方法列表
   */
    methods: {
        onLike: function (event) {
            let { like } = this.properties
            let { count } = this.properties
            count = like ? count - 1 : count + 1
            this.setData({
                count: count,
                like: !like
            })

            let behavior = this.properties.like ? 'like' : 'cancel'
            this.triggerEvent('like', { behavior }, {})
        }
    }
})
